Adjustable grate



J. L. HOULT ADJUSTABLE GRATE Nov. 17, 1925. 1,561,543

Filed Dec. 9 92 INVEN T OR JARVIS. LHOULT ATTORNEY range without disturbing Patented Nov. 17, 1925.

UNITED STATES JARVIS L. HOULT, OF MONTREAL, QUEBEC, CANADA.

ADJUSTABLE GRATE.

Application filed December 9, 1924. Serial No. 754,824.

To all whom it may concern:

Be it known that I, J ARVIS L. HOULT, a subject of the King of Great Britain and resident of the city of Montreal, in the Province of Quebec and Dominion of Canada, have invented certain new and useful Improven'Ients in Adjustable Grates, of which the following is a full, clear, and exact description.

This invention relates to new and useful improvements in auxiliary grates for cookstoves or ranges, and the object of the invention is to provide a simple grate of this character which will be easily and quickly placed in an ordinary coal-burning stove or or rearranging any of the parts of the stove excepting to remove the lids, which may be used as a covering for the auxiliary grate.

Another object is to provide a grate of the character stated which will be adjustable, in order to avoid the necessity of making special grates for the numerous sizes of stove fire-boxes.

A further object is to provide an auxiliary grate in which charcoal or the like may be burned and which will bring the burning charcoal in close proximity to the article or container to be heated.

A still further object is to provide an adjustable auxiliary grate having the minimum number of movable parts.

In my invention, I provide a two-part perforated grate of shallow construction, which may be placed in the fire-pot of an ordinary cookstove. The grate is provided with grooved portions to strengthen same and also to provide a means for positioning one part of the grate with the other when the grate is adjusted to suit the length of the stove fire-pot. The grate is made of steel or the like bent in the form of an arc in the transverse direction of the grate, so that it will automatically ing widths of fire-boxes.

In the drawings Fig. l is a perspective View of a cookstove with my improved auxiliary grate fitted in the fire-pot.

Fig. 2 is a perspective view of the auxiliary grate.

Fig. 3 is a sectional elevation of the grate taken on the line 3-3, Figure 2.

Referring more particularly to the drawings, l1 designates a cookstove of the ordinary type, having the usual coa-l grate 12 adjust itself to the var and side fire bricks l3 and 14 forming the side walls of the fire-pot. The auxiliary grate, which is made in two parts 15 and 16, is supported on the upper edges 17 and 18 of the side walls of the fire-pot. The centre portions 19 of the grate parts are curved in the form of an arc, and the edges 20 and 21 bent outwardly from the arc in the horizontal direction to form a resting medium for the grate when it is placed in position, as shown in Figure 1. The grate is made of very thin material, such as sheet steel or the like and, to .strengthen same, a nun ber of grooves or corrugations 22 are formed therein, said grooves extendin the full length of the curved portion of the grate and in transverse direction of the grate. The grooved portions may also be used as a means for aligning one part of the grate with the other, and also for preventing independent lateral movement of the parts when they are in use. The curved portions of the parts of the grate are provided with a plu.-'

rality of perforations 23, which may be so positioned that they will register when the grate is assembled for use, thereby provid ing a means for automatically regulating the amount of draft passage through the grate, according to the adjusted length of the grate. Modifications may be made in the construction of the grate without departing from the spirit of the invention.

he operation of the device is as follows: When a quick fire is required, the lids of the stove above the fire-pot are removed and the auxiliary grate is then adjusted and placed above the coal-burning grate of the stove, the sides of the auxiliary grate engaging with the upper edges of the side walls of said fire-pot. The adjustment is made in the longitudinal direction by placing one end of one part of the auxiliary grate in overlapping engagement with one end of the other part of the grate. Charcoal or the like is then placed in the rate. The shallow construction of the auxiliary grate provides a means for bringing the burning charcoal close to the article to be heated, thereb providing an easy means to obtain a quick or hot fire for cooking or heating purposes. The grooves formed in the arts of the auxiliary grate are pro vided to strengthen the grate and also to provide an easy means for aligning the parts and holding same in their adjusted position when said grate is in use. It will adapted to engage with the upper edges of the Walls of the fire-pot of the stove.

2. An auxiliary grate according to claim '1, having grooves pressed in the plates to form the aligning means.

3. An auxiliary grate according to claim 1, having the perforations of one plate adapted to register with the perforations of the other plate when said plates are in overlapping engagement with each other.

In witness whereof, I have hereunto set my hand.

JARVIS L HOULT. 

